zTroubleshooting Guide
chap.6
273
sw
-
i
can be performed platemaking.
Cause/Detective section
Procedures
Result
CountermeasureItems to be checked
AD substrate
1
Is replacing the AD PCB Unit a suitable
countermeasure?
Yes Finish
Main PCB Unit No
Check the bundled wire and connector
and replace the main PCB Unit.
Cause/Detective section
Procedures
Result
CountermeasureItems to be checked
The document cover
(ADF conveyance belt) is
dirty.
1
Is the cause cleared by cleaning the
document cover (ADF conveyance
belt)?
Yes Finish
The shading plate is
dirty.
2
Is the cause cleared by cleaning the
shading plate on the back side of the
vertical size nameplate?
Yes Finish
The mirror or glass is
dirty.
3
Is the cause cleared by cleaning the
mirror or glass?
Yes Finish
Lamp 4 Is the lamp lit? No
Refer to "The lamp does not light up".
AD PCB Unit
5
Is the cause cleared by replacing the
AD PCB Unit?
Yes Finish
CCD PCB Unit No
Check the bundled wire and connector
and replace the CCD PCB Unit.
\See page 274
su
-
i
,
y
-
i
or
i
only can be performed platemaking.
st
-
i
can be performed platemaking.
sr
-
i
or
e
-
i
can be performed platemaking.
Cause/Detective section
Procedures
Result
CountermeasureItems to be checked
Thermal head PCB Unit 1 Replace the thermal head PCB Unit.
Cause/Detective section
Procedures
Result
CountermeasureItems to be checked
Main substrate
1
Is replacing the main PCB Unit a suit-
able countermeasure?
Yes Finish
Thermal head PCB Unit No
Check the bundled wire and connector
and replace the thermal head.
Cause/Detective section
Procedures
Result
CountermeasureItems to be checked
Main PCB Unit 1 Replace the main PCB Unit.
s
All the parts can be performed platemaking.